What checked-baggage rules may apply on an itinerary with Southwest Airlines?

Your checked-bag allowance and fee with Southwest Airlines depend on your route, fare, travel date, bag details and who operates each flight. Check the official baggage tool for your exact trip before paying or going to the airport.

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What this answer depends on

  • Southwest publishes checked-baggage rules separately from its fee table, so the traveler must verify both for the exact trip.
  • The current checked-bag result can change with fare product, loyalty or card benefit, trip, ticketing or change date, and bag size or weight.
  • Southwest's contract sets an airport baggage acceptance deadline and allows refusal of baggage that is unsuitable by size, weight, contents, or condition.

Important unknowns

  • Exact trip and airline operating each flight
  • Fare product and ticket issue date
  • Current loyalty, card or other traveler benefits
  • Current size, weight, airport and temporary route restrictions

What to do next

  1. Step 1

    Open the official baggage policy or calculator linked below.

  2. Step 2

    Enter or confirm the exact route, dates, cabin, fare and operating airline.

  3. Step 3

    Check bag count, dimensions, weight and any restricted-item rule separately.

  4. Step 4

    Save the result or receipt and recheck after any trip change.

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